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Noboru Ito

Meijo University

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Publication

Featured researches published by Noboru Ito.

Journal of Algebra | 1994

On Hadamard Groups

Noboru Ito

Abstract Hadamard groups are introduced and some of their basic properties are established.

Graphs and Combinatorics | 1994

Note on Hadamard tournaments of Szekeres type

Noboru Ito; Takeo Okamoto

An Hadamard 3-design involving an Hadamard tournament of Szekeres type involves and Hadamard tournament which is not equivalent with an Hadamard tournament of Szekeres type.

Graphs and Combinatorics | 1992

Nearly triply regular Drad's ofRH type

Noboru Ito; Blessilda P. Raposa

Nearly triply regular (4m2, 2m2−m,m2−m) DRAD’s, wherem is an even power of 2, are constructed.

Discrete Mathematics | 1996

Even tournaments and Hadamard tournaments

Noboru Ito

Abstract We discuss several results and problems of even tournaments and Hadamard tournaments.

Kyushu Journal of Mathematics | 1997

ON HADAMARD GROUPS III

Noboru Ito

Kyushu Journal of Mathematics | 1996

REMARKS ON HADAMARD GROUPS

Noboru Ito

Australasian J. Combinatorics | 1997

Hadamard 2-groups with arbitrarily large derived length.

Jung R. Cho; Noboru Ito; Pan Soo Kim; Hyo-Seob Sim

名城大学理工学部研究報告 | 1996

A Note on Triple Block Intersection Numbers of Hadamard 3-Designs

Blessilda P. Raposa; Noboru Ito

Journal of Algebra | 1998

On Hadamard Property of a Certain Class of Finite Groups

Jung R. Cho; Noboru Ito; Pan Soo Kim

名城大学理工学部研究報告 | 1992

Note on Nearly Triply Regular Symmetric Designs of Brouwer Type

Noboru Ito; Blessilda P. Raposa

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Collaboration

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Blessilda P. Raposa

De La Salle University

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Jung R. Cho

Pusan National University

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Pan Soo Kim

Pusan National University

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Takeo Okamoto

Meijo University

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